- Lightning Balanced Engine Front Guard -

Detailing how we made the Guard for the Quarter Scale Replica will give some idea of the challenge and complexity of such a project. This Guard is the focal point of the engine but sadly hides the most interesting feature; the front opposing piston. The 10 HP portable engine we copied no longer had this guard, but a similar engine did, so we could get the exact size. The mold was made slightly larger to allow for wax shrinkage and then metal shrink. It was highly polished to allow the wax to release.

Original Front Guard

Upper Mold for front guard

Lower Mold for front guard

Mold & wax patterns for front guard

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